The present disclosure provides a gamma tuning method and a gamma tuning device. The gamma tuning method includes steps of: comparing grayscale binding points of a to-be-debugged module with a standard gamma curve; determining a to-be-tuned grayscale binding point from the grayscale binding points of the to-be-debugged module in accordance with a comparison result between the grayscale binding points of the to-be-debugged module and the standard gamma curve; and tuning a grayscale brightness value of the to-be-tuned grayscale binding point in accordance with a target brightness value of the grayscale binding point on the standard gamma curve.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A gamma tuning method, comprising: comparing grayscale binding points of a to-be-debugged module with a standard gamma curve; determining a to-be-tuned grayscale binding point from the grayscale binding points of the to-be-debugged module in accordance with a comparison result between the grayscale binding points of the to-be-debugged module and the standard gamma curve; and tuning a grayscale brightness value of the to-be-tuned grayscale binding point in accordance with a target brightness value of the grayscale binding point on the standard gamma curve, wherein the step of tuning the grayscale brightness value of the to-be-tuned grayscale binding point in accordance with the target grayscale brightness value of the grayscale binding point on the standard gamma curve comprises: tuning, in accordance with the target grayscale brightness value of the grayscale binding point on the standard gamma curve, the grayscale brightness value of the to-be-tuned grayscale binding point on the gamma curve of the to-be-debugged module in an iterative mode where the grayscale brightness value gradually approaches the target grayscale brightness value.
2. The gamma tuning method according to claim 1 , wherein the comparison result comprises that the to-be-tuned grayscale binding point is inconsistent with the standard gamma curve.
3. The gamma tuning method according to claim 1 , wherein the step of tuning, in accordance with the target grayscale brightness value of the grayscale binding point on the standard gamma curve, the grayscale brightness value of the to-be-tuned grayscale binding point on the gamma curve of the to-be-debugged module in the iterative mode where the grayscale brightness value gradually approaches the target grayscale brightness value comprises: tuning the grayscale brightness value of the to-be-tuned grayscale binding point on the gamma curve of the to-be-debugged module; comparing the tuned grayscale brightness value of the grayscale binding point with the target grayscale brightness value of the grayscale binding point on the standard gamma curve; and in the case that the tuned grayscale brightness value is inconsistent with the target grayscale brightness value, tuning the tuned grayscale brightness value gradually in accordance with the target grayscale brightness value, until the grayscale brightness value of the grayscale binding point is consistent with the target grayscale brightness value.
4. The gamma tuning method according to claim 1 , wherein an absolute value of a difference between the tuned grayscale brightness value of the grayscale binding point and the target grayscale brightness value is smaller than or equal to a threshold; or an absolute value of a square of the difference between the tuned grayscale brightness value of the grayscale binding point and the target grayscale brightness value is smaller than or equal to a threshold.
5. The gamma tuning method according to claim 1 , wherein the step of comparing the grayscale binding points of the to-be-debugged module with the standard gamma curve comprises: comparing grayscale brightness values of the grayscale binding points of the to-be-debugged module with corresponding brightness values on the standard gamma curve; or comparing a gamma curve of the to-be-debugged module with the standard gamma curve, wherein the gamma curve of the to-be-debugged module is created on the basis of the grayscale binding points of the to-be-debugged module.
6. The gamma tuning method according to claim 5 , wherein prior to the step of comparing the gamma curve of the to-be-debugged module with the standard gamma curve, the gamma tuning method further comprises: performing white balance tuning on the to-be-debugged module; and acquiring an R-component gamma curve, a G-component gamma curve and a B-component gamma curve of the to-be-debugged module after the white balance tuning.
7. The gamma tuning method according to claim 6 , wherein the step of acquiring the R-component gamma curve, the G-component gamma curve and the B-component gamma curve of the to-be-debugged module after the white balance tuning comprises: determining a picture in accordance with characteristic data of a driver Integrated Circuit (IC) of the to-be-debugged module, and reading from the picture a grayscale brightness value of a R component, a grayscale brightness value of a G component and a grayscale brightness value of a B component, wherein the picture contains the grayscale brightness values of the respective grayscale binding points corresponding to the driver IC of the to-be-debugged module; and generating the R-component gamma curve, the G-component gamma curve and the B-component gamma curve of the to-be-debugged module in accordance with the grayscale brightness value of the R component, the grayscale brightness value of the G component and the grayscale brightness value of the B component.
8. The gamma tuning method according to claim 7 , wherein the picture comprises a monochromatic R region, a monochromatic G region and a monochromatic B region, and grayscale pictures of the grayscale binding points corresponding to the driver IC are arranged at the R region, the G region and the B region respectively.
9. The gamma tuning method according to claim 6 , wherein the step of comparing the gamma curve of the to-be-debugged module with the standard gamma curve comprises: comparing the R-component gamma curve, the G-component gamma curve and the B-component gamma curve of the to-be-debugged module with a standard R-component gamma curve, a standard G-component gamma curve and a standard B-component gamma curve of the standard gamma curve respectively, wherein each of the standard R-component gamma curve, the standard G-component gamma curve and the standard B-component gamma curve has a gamma value of 2.2.
10. The gamma tuning method according to claim 5 , wherein prior to the step of comparing the gamma curve of the to-be-debugged module with the standard gamma curve, the gamma tuning method further comprises: collecting the characteristic data of the driver IC of the to-be-debugged module; and creating the standard gamma curve in accordance with the collected characteristic data of the driver IC of the to-be-debugged module.
11. A gamma tuning device, comprising a memory and a processor, wherein the memory is configured to store therein computer-readable instructions, and the processor is configured to execute the computer-readable instructions stored in the memory, to enable to: compare grayscale binding points of a to-be-debugged module with a standard gamma curve; determine a to-be-tuned grayscale binding point from the grayscale binding points of the to-be-debugged module in accordance with a comparison result between the grayscale binding points of the to-be-debugged module and the standard gamma curve; and tune a grayscale brightness value of the to-be-tuned grayscale binding point in accordance with a target brightness value of the grayscale binding point on the standard gamma curve, and tune, in accordance with the target grayscale brightness value of the grayscale binding point on the standard gamma curve, the grayscale brightness value of the to-be-tuned grayscale binding point on the gamma curve of the to-be-debugged module in an iterative mode where the grayscale brightness value gradually approaches the target grayscale brightness value.
12. The gamma tuning device according to claim 11 , wherein the processor is further configured to: tune the grayscale brightness value of the to-be-tuned grayscale binding point on the gamma curve of the to-be-debugged module; compare the tuned grayscale brightness value of the grayscale binding point with the target grayscale brightness value of the grayscale binding point on the standard gamma curve; and in the case that the tuned grayscale brightness value is inconsistent with the target grayscale brightness value, tune the tuned grayscale brightness value gradually in accordance with the target grayscale brightness value, until the grayscale brightness value of the grayscale binding point is consistent with the target grayscale brightness value.
13. The gamma tuning device according to claim 11 , wherein the processor is further configured to: compare grayscale brightness values of the grayscale binding points of the to-be-debugged module with corresponding brightness values on the standard gamma curve; or compare a gamma curve of the to-be-debugged module with the standard gamma curve, wherein the gamma curve of the to-be-debugged module is created on the basis of the grayscale binding points of the to-be-debugged module.
14. The gamma tuning device according to claim 13 , wherein the processor is further configured to: perform white balance tuning on the to-be-debugged module; and acquire an R-component gamma curve, a G-component gamma curve and a B-component gamma curve of the to-be-debugged module after the white balance tuning.
15. The gamma tuning device according to claim 14 , wherein the processor is further configured to: determine a picture in accordance with characteristic data of a driver IC of the to-be-debugged module, and read from the picture a grayscale brightness value of a R component, a grayscale brightness value of a G component and a grayscale brightness value of a B component, wherein the picture contains the grayscale brightness values of the respective grayscale binding points corresponding to the driver IC of the to-be-debugged module; and generate the R-component gamma curve, the G-component gamma curve and the B-component gamma curve of the to-be-debugged module in accordance with the grayscale brightness value of the R component, the grayscale brightness value of the G component and the grayscale brightness value of the B component.
16. The gamma tuning device according to claim 15 , wherein the picture comprises a monochromatic R region, a monochromatic G region and a monochromatic B region, and grayscale pictures of the grayscale binding points corresponding to the driver IC are arranged at the R region, the G region and the B region respectively.
17. The gamma tuning device according to claim 14 , wherein the processor is further configured to: compare the R-component gamma curve, the G-component gamma curve and the B-component gamma curve of the to-be-debugged module with a standard R-component gamma curve, a standard G-component gamma curve and a standard B-component gamma curve of the standard gamma curve respectively, wherein each of the standard R-component gamma curve, the standard G-component gamma curve and the standard B-component gamma curve has a gamma value of 2.2.
18. The gamma tuning device according to claim 13 , wherein the processor is further configured to: collect the characteristic data of the driver IC of the to-be-debugged module; and create the standard gamma curve in accordance with the collected characteristic data of the driver IC of the to-be-debugged module.
19. A gamma tuning method, comprising: collecting characteristic data of a driver IC of a to-be-debugged module; creating a standard gamma curve in accordance with the collected characteristic data of the driver IC of the to-be-debugged module; comparing grayscale binding points of the to-be-debugged module with the standard gamma curve; determining a to-be-tuned grayscale binding point from the grayscale binding points of the to-be-debugged module in accordance with a comparison result between the grayscale binding points of the to-be-debugged module and the standard gamma curve; and tuning a grayscale brightness value of the to-be-tuned grayscale binding point in accordance with a target brightness value of the grayscale binding point on the standard gamma curve.
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February 28, 2017
October 29, 2019
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